Concrete Columns
You’re going to pour five columns,
each of which has a diameter of 3 feet
4-1/2 inches and a height of 11 feet 6
inches. How many cubic yards of con-
crete will you need for all five columns?
Steps
Keystrokes
Display
Clear calculator
[On/C] [On/C]
0.
1 — Find Surface Area of Column
Enter diameter
3 [Feet] 4 [Inch]
1 [/] 2 [Circ]
DIA
3- 4 1/2
FEET INCH
Find surface area
[Circ]
8.946176
SQ FEET
2 — Find Volume
Multiply by
[x] 11 [Feet]
height
6 [Inch] [=]
102.881
CU FEET
Convert to yards
[Conv] [Yds]
3.810408
CU YD
Multiply by 5 columns to find total cubic yards
of concrete
[x] 5 [=]
19.05204
CU YD
32 – Pocket Handyman
®
IV